feat: add int convert

conv/conv.go

@@ -58,3 +58,134 @@ func Bool(val any) bool {
 		panic("unknown type for Bool()")
 	}
 }
+
+// Int returns the integer representation of the value.
+func Int(val any) int {
+	switch val := val.(type) {
+	case bool:
+		if val {
+			return 1
+		}
+
+		return 0
+	case int:
+		return val
+	case int8:
+		return int(val)
+	case int16:
+		return int(val)
+	case int32:
+		return int(val)
+	case int64:
+		return int(val)
+	case uint:
+		return int(val)
+	case uint8:
+		return int(val)
+	case uint16:
+		return int(val)
+	case uint32:
+		return int(val)
+	case uint64:
+		return int(val)
+	case float32:
+		return int(val)
+	case float64:
+		return int(val)
+	case *int:
+		if val == nil {
+			return 0
+		}
+
+		return *val
+	case *int8:
+		if val == nil {
+			return 0
+		}
+
+		return int(*val)
+	case *int16:
+		if val == nil {
+			return 0
+		}
+
+		return int(*val)
+	case *int32:
+		if val == nil {
+			return 0
+		}
+
+		return int(*val)
+	case *int64:
+		if val == nil {
+			return 0
+		}
+
+		return int(*val)
+	case *uint:
+		if val == nil {
+			return 0
+		}
+
+		return int(*val)
+	case *uint8:
+		if val == nil {
+			return 0
+		}
+
+		return int(*val)
+	case *uint16:
+		if val == nil {
+			return 0
+		}
+
+		return int(*val)
+	case *uint32:
+		if val == nil {
+			return 0
+		}
+
+		return int(*val)
+	case *uint64:
+		if val == nil {
+			return 0
+		}
+
+		return int(*val)
+
+	case *float32:
+		if val == nil {
+			return 0
+		}
+
+		return int(*val)
+	case *float64:
+		if val == nil {
+			return 0
+		}
+
+		return int(*val)
+	case string:
+		i, err := strconv.Atoi(val)
+		if err != nil {
+			panic(err)
+		}
+
+		return i
+	case *string:
+		if val == nil {
+			return 0
+		}
+
+		i, err := strconv.Atoi(*val)
+		if err != nil {
+			panic(err)
+		}
+
+		return i
+	case nil:
+		return 0
+	default:
+		panic("unknown type for Int()")
+	}
+}